a:5:{i:0;s:2:"id";i:1;s:3:"pid";i:2;s:3:"cid";s:3:"_pk";s:2:"id";s:5:"_type";a:3:{s:2:"id";s:16:"int(10) unsigned";s:3:"pid";s:7:"int(11)";s:3:"cid";s:7:"int(11)";}}